एक निर्माण दल पहले दिन (20) घंटे काम करता है और हर अगले दिन (5) घंटे अधिक काम करता है। (14) दिनों में कुल कितने घंटे काम होगा?
A construction team works (20) hours on the first day and (5) more hours each next day. How many hours of work are done in (14) days?
Explanation opens after your attempt
D. (735)
Concept
The work hours are \(20,25,30,\ldots\) and \(S_{14}=735\). Exam tip: add all days using the sum formula for total hours.
Why this answer is correct
The correct answer is D. (735). The work hours are \(20,25,30,\ldots\) and \(S_{14}=735\). Exam tip: add all days using the sum formula for total hours.
Exam Tip
काम के घंटे \(20,25,30,\ldots\) हैं और \(S_{14}=735\)। परीक्षा में कुल घंटे के लिए सभी दिनों का योग लें।
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